Chapter 6 Test Study Guide

Question 1

What is matter?

Answer 1

matter is anything that thaw mass or takes up space

Question 2

What are the 3 main particle models?

Answer 2

• tiny particles to small to see
• constant motion
• different sizes and properties

Question 3

What role does motion play in the Particle Model of Matter?

Answer 3

It determines the form of a substance

Question 4

What role does packing of particles play in the Particle of Model of Matter?

Answer 4

Constant motion. Liquid moves faster than a solid.

Question 5

What is a colloid?

Answer 5

Two phases of matter trapped within each other.

Aerosol - Liquid trapped within a gas

Question 6

What are the 12 properties of matter?

Answer 6

1. mass 2. volume 3. density 4. color 5. texture 6. odor

7. luster 8. transparency 9. hardness 10. resistance to breakage 11. solubility 12. conductivity

Question 7

What is solubility?

Answer 7

The ability to dissolve.

Question 8

What is conductivity?

Answer 8

The ability to conduct electricity.

Question 9

What is transparency?

Answer 9

How well light goes through something.

Question 10

What is luster?

Answer 10

The ability to ref.

Question 11

What is resistance to breakage?

Answer 11

Resistance is how hard it is to breakthrough an object.

Question 12

What is hardness?

Answer 12

How hard it is to scratch an object.

Question 13

What is a phase change?

Answer 13

A change in a substance’s physical properties but not its chemical identity.

Question 14

What are the 4 phases of matter?

Answer 14

solid-has a definite shape and volume
liquid-has no definite shape but definite volume
gas-has no definite shape or volume
plasma-is created in unique conditions and is created at very high temperatures

Question 15

What is the difference between a crystalline solid and an amorphous solid?

Answer 15

Crystalline is most solid, regular repeating of molecules.

Amorphous solids less regular arrangements, melt at relatively low temperatures. (wax)

Question 16

What are the 3 basic forms of carbon? Why are they different?

Answer 16

Compact structure.
Fluid structure.
random structure.

Question 17

What is viscosity?

Answer 17

Viscosity is the resistance to flow.

Question 18

What is condensation?

Answer 18

Condensation is when gas (vapor) turns into a liquid gas to liquid.

Question 19

What is evaporation?

Answer 19

liquid to gas.

Question 20

What is Boyle’s Law?

Answer 20

At constant temperature, when pressure increases volume decreases.

Question 21

What is Charles’ Law?

Answer 21

Robert Boyle-1600s English Scientist.

At constant temperature, when pressure increases, volume decreases.

Question 22

How can you compare the graphs of Boyle’s law and Charles’ Law?

Answer 22

……..see graphs…….

Question 23

What is physical change?

Answer 23

A change in a substances physical properties but not its chemical identity.

Question 24

What is a mixture?

Answer 24

Two substances combined/put together.

Question 25

What is the difference between a chemical and physical change?

Answer 25

They both can look different but a chemical change is different.

Question 26

What are some evidences of a chemical change?

Answer 26

light produced; heat produced; gas bubbles seen; solid appears (precipitative)

Question 27

What is a chemical bond?

Answer 27

When chemical bonds are broken new bonds are made.

Question 28

What is the difference between a simple mixture and a solution?

Answer 28

Simple: example: marbles and wood. easy to undo.
Solution: example: salt dissolved in water. harder to undo.